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Oddball, Experimental, or One-off


red750

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The P.12, also sometimes referred to as the Wendover, was a modified version of the prototype Lysander K6127 with a Delanne configuration rear wing to carry a 4-gun turret power-operated tail gun turret. The design was intended for "beach strafing" in case of invasion of the UK. The rear fuselage was replaced by a wider one of constant cross section. Mounted low on it was a much larger tail surface, making it a Delanne-type tandem wing. Twin tail fins replaced the central fin, making room for the gun turret which was fitted just aft of the rear wing. Both Frazer Nash and Boulton-Paul turrets were considered but only a dummy with no power system was installed. The main wing and forward fuselage remained unchanged. Although it flew well, trials were still underway when the threat of invasion disappeared and it did not proceeded past flight trials, which were carried out with the dummy turret.

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On the Ring Wing Thing, you just have to ask, "Why?". Just to try and eliminate wingtip vortexes? To my untrained eye, it flies like a house brick. The parasitic drag of that ring wing must be huge.

 

 

 

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Blackburn H.S.T.10

 

The Blackburn H.S.T.10 (sometimes known as the Blackburn B-9) was a 1930s British twin-engined commercial monoplane, designed and built by Blackburn Aircraft at Brough, East Yorkshire.

 

Intended to be "high speed" by careful attention to shape and removing "protuberances" with retractable undercarriage, the expected performance was 320 miles with two pilots and twelve passengers which increased to 1000 miles with both pilots and five passengers.

 

The prototype used test serial B-9. In 1937, the project was abandoned, and B-9 was given to Loughborough College as an instructional airframe.

 

Blackburn-HST10-1257x.jpg

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1 hour ago, facthunter said:

Have you got a listing for Republic Seabee?  Nev

Thanks for the prompt, Nev. It fell through the cracks somehow. With over 1,000 produced, I have done a full profile in GA Single Engine.

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Republic XF-12 Rainbow

 

The Republic XF-12 Rainbow was an American four-engine, all-metal prototype reconnaissance aircraft designed by the Republic Aviation Company in the late 1940s. Like most large aircraft of the era, it used radial engines, specifically the Pratt & Whitney R-4360 Wasp Major. The XF-12 was referred to as "flying on all fours" meaning: four engines, 400 mph (640 km/h) cruise, 4,000 mi (6,400 km) range, at 40,000 ft (12,000 m). The aircraft was designed to maximize aerodynamic efficiency. Although innovative, the jet engine and the end of World War 2 made it obsolete, and it did not enter production. A proposed airliner variant, the RC-2, was deemed uneconomical and cancelled before being built.Only two examples built.

 

strategicheskij-samolet-razvedchik-Republic-XF-12-Rainbow-4.jpg

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B-17G Flying Fortress used as testbed for a turboprop engine. The turboprop under test was sufficient to keep the bomber aloft with all other engines stopped.

 

Boeing JB-17G engine testbed operating solely under the power of the ...

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Northrop XP-56 Black Bullet

 

The Northrop XP-56 Black Bullet was a unique prototype fighter interceptor built by the Northrop Corporation. It was one of the most radical of the experimental aircraft built during World War II. Ultimately, it was unsuccessful and did not enter production. Only 2  built.

 

 

XP-56 - Ray Wagner Collection Image (27920163822).jpg

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On 16/12/2022 at 11:11 AM, Old Koreelah said:

We easily overlook the need for training aircraft, which is what this one morphed into. During WWII American navy pilots needed a realistic aircraft carrier to train on. Instead of diverting precious warships for the purpose, a couple of old coal-driven paddle wheel passenger ships were quickly converted:

 

https://en.wikipedia.org/wiki/USS_Sable_(IX-81)

We need a 😲 in the 'like' menu 

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3 hours ago, red750 said:

Northrop XP-56 Black Bullet

 

The Northrop XP-56 Black Bullet was a unique prototype fighter interceptor built by the Northrop Corporation. It was one of the most radical of the experimental aircraft built during World War II. Ultimately, it was unsuccessful and did not enter production. Only 2  built.

 

 

XP-56 - Ray Wagner Collection Image (27920163822).jpg

Well no wonder it was unsuccessful - they forgot the rear fuselage and horizontal stabilizer, pointed the engines the wrong way and mounted the tail upside down.

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Gee, just 9 months to convert that old paddle steamer into a replica aircraft carrier, is a staggering feat - even more so, when it was done at a time when such huge numbers of American men were already fighting in war zones!

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Sud-Est 2410 Grognard

 

The SNCASE Grognard was designed as a single-seat, low-level ground-attack aircraft. Although in development in the 1950s for the French Armée de l'Air, the program was cancelled in favor of the Sud-Ouest Vautour II.   2 built.

 

SE.2410 Grognard I.jpg  Sud-Est SE.2410 Grognard - avionslegendaires.net

 

image.png.16ba81b0b4f4d9b46b3dcec9a6764f85.png

SNCASE (Sud-Est Aviation) Projects | Secret Projects Forum

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Only the French could build such an ugly aircraft, but they were not the first to put the air intake ready to gobble up the pilot if the ejector seat failed. 

On the other hand, intake of foreign objects off the ground would be eliminated. Some Soviet designs prevent this by having a special intake above the wing for takeoff. 

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Here is one that is easy to mistake because it looks so similar to another aircraft. It is the Convair Charger, which lost out to the very similar OV-10 Bravo. The difference in appearance are the cockpit, and the tail. Only one prototype was built.

 

Convair Charger.

 

Convair Model 48 Charger - AR15.COM

 

North American Rockwell OV-10 Bravo

 

1000+ images about OV-10 on Pinterest | Mesas, Luftwaffe and Popular

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On 12/1/2023 at 11:56 AM, red750 said:

Here is one that is easy to mistake because it looks so similar to another aircraft. It is the Convair Charger, which lost out to the very similar OV-10 Bravo. The difference in appearance are the cockpit, and the tail. Only one prototype was built.

 

Convair Charger.

 

Convair Model 48 Charger - AR15.COM

 

North American Rockwell OV-10 Bravo

 

1000+ images about OV-10 on Pinterest | Mesas, Luftwaffe and Popular

I think you mean the OV-10 Bronco not  Bravo. 

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